@CHARSET "ISO-8859-1";
/* Reset CSS
 * --------------------------------------- */


 @font-face {
    font-family: 'DINFont';   /*字体名称*/
    src: url('../font/DIN-LI.OTF');       /*字体源文件*/
  }

  /* 加粗字体 */
  @font-face {
    font-family: 'DINFont_BO';   /*字体名称*/
    src: url('../font/DIN-BO.OTF');       /*字体源文件*/
  }

 *{
    font-family: DINFont;
 }
 body{
	font-family: DINFont;
	background-color: #000000;
}

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,
form,fieldset,input,textarea,p,blockquote,th,td {
    padding: 0;
    margin: 0;
    text-align: left;
}
a{
	text-decoration:none;
}
table {
    border-spacing: 0;
}
fieldset,img {
    border: 0;
}
address,caption,cite,code,dfn,em,strong,th,var {
    font-weight: normal;
    font-style: normal;
}
strong{
	font-weight: bold;
}
ol,ul {
    list-style: none;
    margin:0;
    padding:0;
}
caption,th {
    text-align: left;

}
h1,h2,h3,h4,h5,h6 {
    font-weight: normal;
    font-size: 100%;
    margin:0;
    padding:0;
    color:#ffffff;
}
q:before,q:after {
    content:'';
}
abbr,acronym { border: 0;
}


.fp-watermark{display: none;}


#canvas_3 {
	display: block;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
}


/* 处理调试 */
.lil-gui.autoPlace {
	display: none;
}

.intro p {
	color: #fff;
}

/* Centered texts in each section
* --------------------------------------- */
.section {
	text-align: center;
   
}

.mala-nav-list{
    opacity: 0;
}

/* Fixed header and footer.
* --------------------------------------- */
#header,
#footer {
	position: fixed;
	min-height: 60px;
	display: block;
	width: 100%;
	background: #000000;
	z-index: 9;
	text-align: center;
	color: #ffffff;
	padding: 20px 0 0 0;
}

#header {
	top: 0px;
}

#footer {
	bottom: 0px;
	background: transparent;
    animation: none!important;
    opacity: 0
}

.nav {
    /* width: 1920px; */
    margin: 0 auto;
    height: 60px;
    padding-left: 10%;
    padding-right: 10%;
	display: flex;
	align-items: center;
	justify-content: space-between;

}



.mala-logo {
    background-image: url(../images/LOGO.png);
    display: block;
    width: 192px;
    height: 47px;
    background-size: contain;
}

.nav-help {
    display: flex;
	align-items: center;
	justify-content: flex-end;
}

 
.mala-fl {
    float: left;
    text-align: center;
}

.mala-nav-link-home{
    border-bottom: 2px solid #fff;
}

/* .mala-nav-link {
    border-bottom: 2px solid #000000;
} */
.mala-nav-link:hover {
    border-bottom: 2px solid #fff;
}

.mala-nav-list {
    margin-left: 30px;
}

.mala-nav-item {
    position: relative;
    list-style-type: none;
    display: list-item;
    margin-left: 60px;
    /* margin-top: 12px; */
}

.mala-nav-link-lang {
    background-image: url(../images/language.png);
    background-repeat: no-repeat;
    display: block;
    width: 28px;
    height: 28px;
    margin-top: 2px;
}

.mala-nav-link {
    font-family: DINFont;
    text-decoration: none;
    display: inline-block;
    color: #fff;
    cursor: pointer;
    font-weight: regular;
    font-size: 22px;
    padding-bottom: 4px;
    line-height: normal;
}


.bottom1 {
    position: fixed;
    bottom: 3px;
    left: 50%;
    width: 260px;
    margin-left: -102px;
    z-index: 999;
}
.bottom1_top{
    display: flex;
    align-items: center;
    justify-content: center;
}

.bottom1 img {
    width: 33px;
    margin-right: 28px;
  

}
.img_1{
    transition: all 2 ease-in-out 0.3s;
    cursor: pointer;
}
.img_1:hover {
    transform: scale(1.2);
    transition: all 2 ease-in-out 0.3s;
}

.img_mouse {
    width: 100%;
    margin: 20px auto 10px;

    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.img_keyboard {
    margin-top: 2px;
    animation: img_keyboard_move 1.3s cubic-bezier(0, 0.41, 0.67, 1.08) 0.2s infinite both;
}

@keyframes img_keyboard_move {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

/* Bottom menu
* --------------------------------------- */


/* Custom CSS
 * --------------------------------------- */

 .left-border {
    display: inline-block;
    width: 5px;
    height: 20px;
    background-color: #fff;
    margin-right: 12px;
}

 /* page-0 */

 #fp-nav ul li:nth-child(1){
    display: none;
    /* opacity: 0; */
 }


 
 .spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1003;
    /* height: 300px; */
   opacity: 0;
   overflow: hidden;
   transition: all 2 ease-in-out 0.3s;
   animation: spinner1 1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 0.4s 1 forwards;
}

@-webkit-keyframes spinner1 {
  0% {
   opacity: 0;
  }

  100% {
    opacity: 1;
}
}

  .spinner .blob:first-child {
    display: block;
    position: relative;
    left: 50%;
    top: 40%;
    width: 260px;
    height: 260px;
    margin: -130px 0 0 -130px;
    border-radius: 50%;
    box-shadow: 0 5px 5px 0 rgb(255, 255, 255);
    filter: contrast(1.1);
    transform: translate3d(0, 0, 0);
    animation: spin 2s linear infinite
  }

  .spinner .blob:first-child:after,
  .spinner .blob:first-child:before {
    content: '';
    position: absolute;
    border-radius: 50%
  }

  .spinner .blob:first-child:before {
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    box-shadow: 0 6px 6px 0 rgb(255, 255, 255,0.7);
    -webkit-animation: spin 3s linear infinite;
    animation: spin 3s linear infinite
  }

  .spinner .blob:first-child:after {
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    box-shadow: 0 5px 5px 0 rgb(255, 255, 255,0.4);
    animation: spin 1.5s linear infinite
  }

  @-webkit-keyframes spin {
    0% {
      transform: rotate(0)
    }

    100% {
      transform: rotate(360deg)
    }
  }

  @-moz-keyframes spin {
    0% {
      -moz-transform: rotate(0)
    }

    100% {
      -moz-transform: rotate(360deg)
    }
  }

  @keyframes spin {
    0% {
      transform: rotate(0)
    }

    100% {
      transform: rotate(360deg)
    }
  }

 .loading0 {
    position: absolute;
    left: 50%;
    top: 30vh;
    margin-left: -15vh;
    display: block;
    width: 30vh;
    height: 30vh;
    text-align: center;
    filter: contrast(1);


}

.loading0_tetx{
    
    text-align: center;
    color: #ffffff;
    font-size: 42px;
    position: absolute;
    left: 50%;
    top: 40%;
    margin-top: -160px;
    width: 100px;
    margin-left: -45px;
    margin-top: -24px;
    background-color: rgba(0,0,0.3);
    height: 60px;
}

.loading0_but{
    text-align: center;
    color: #ffffff;
    font-size: 38px;
    font-weight: bold;
    position: absolute;
    cursor: pointer;
    left: 50%;
    top: 40%;
    margin-top: -24px;
    width: 120px;
    margin-left: -60px;
    transition: all 0.5s ease-in-out 0.1s; 
    opacity: 0;
    background-color: rgba(0,0,0.3);
    height: 60px;
}
.loading0_but:hover {
    transform: scale(1.1);
}

.loading0 span {
    mix-blend-mode: screen;
    display: block;
    position: absolute;
    border-radius: 50%;
    animation: wave 4s infinite linear;
}

.loading0 span:nth-child(0) {
    left: -11%;
    right: -2%;
    top: -12%;
    bottom: -5%;
    transform-origin: 46% 53%;
    animation-delay: 0;
    background-color: hsl(0, 50%, 70%);
}

.loading0 span:nth-child(1) {
    left: -4%;
    right: -4%;
    top: -9%;
    bottom: -2%;
    transform-origin: 47% 50%;
    animation-delay: -1s;
    background-color: hsl(50, 60%, 70%);
}

.loading0 span:nth-child(2) {
    left: -11%;
    right: -4%;
    top: -10%;
    bottom: -11%;
    transform-origin: 49% 53%;
    animation-delay: -1.5s;
    background-color: hsl(100, 70%, 70%);
}

.loading0 span:nth-child(3) {
    left: -7%;
    right: -9%;
    top: -11%;
    bottom: -4%;
    transform-origin: 47% 52%;
    animation-delay: -2s;
    background-color: hsl(150, 80%, 70%);
}

.loading0 span:nth-child(4) {
    left: -8%;
    right: -3%;
    top: -5%;
    bottom: -11%;
    transform-origin: 47% 52%;
    animation-delay: -2.5s;
    background-color: hsl(200, 90%, 70%);
}

.loading0 span:nth-child(5) {
    left: -10%;
    right: -8%;
    top: -4%;
    bottom: -9%;
    transform-origin: 48% 51%;
    animation-delay: -3s;
    background-color: hsl(250, 100%, 70%);
}

.loading0 span:nth-child(6) {
    left: -9%;
    right: -11%;
    top: -5%;
    bottom: -8%;
    transform-origin: 47% 50%;
    animation-delay: -3.5s;
    background-color: hsl(300, 100%, 70%);
}

@keyframes wave {
    from {
        transform: rotateZ(0deg);
    }
    to {
        transform: rotateZ(360deg);
    }
}

 

 /* page-0-end */

 /* page-1 */

 .back{
	height: 100%;
	overflow: hidden;
}
 .back #canvas{
	margin-top: -60px;
}

#canvas{
    transition: all 0.5s ease-in-out 0.4s;
}

 .home_cent{
    position: absolute;
    left:50%;
    top: 8%;
    margin: 0px auto;
    font-family:DINFont;
    color: #fff;
    z-index: 99;
    margin-left: -460px;
    line-height: 40px;
    opacity: 0;
    z-index: 9999;
    /* transition: all 3s ease-in-out 0.4s; */
 
}

.home_cent_ac {
    animation: home_cent_ac 0.9s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.home_cent_ach {
    animation: home_cent_ach 0.9s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes home_cent_ac {
    0% {
        opacity: 0;
        top: 17%;
    }

    100% {
        opacity: 1;
        top: 8%;
    }
}

@keyframes home_cent_ach {
    0% {
        opacity: 1;
        top: 8%;
    }

    100% {
        opacity: 0;
        top: 17%;
    }
}

.home_cent h4 {
    color: #ffffff;
    font-family:DINFont_BO;
    font-weight: bold;
    font-size: 60px;
    /* line-height: 34px; */
    letter-spacing: 0px;
    text-align: left;
    display: block;
    margin: 0;
    margin-top: 70px;
}
.home_cent p {
	color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    /* line-height: 30px; */
    letter-spacing: 0px;
    text-align: left;
	margin-top: 12px;
}

 /* page-1-end */

 /* page-2 */
 .back0{
    padding-left: 8%;
    padding-right: 8%;
   position: absolute;
   top:0;
   left: 0;
   position: relative;
   height: 100%;

}

.title1 {
    width: 609px;
    height: 400px;
    position: absolute;
    left: 12%;
    top: 48%;
    transform: translate(0%, -66%);
    color: #fff;
    z-index: 99;
    transition: all 2 ease-in-out 0.3s;

}

 

.title1_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    letter-spacing: 0px;
    text-align: left;
    display: block;
    line-height: 44px;
    transition: all 3 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    position: absolute;
    top: 60px;
}




.title1_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    position: absolute;
    top: 220px;

}


.cent1 {
    width: 700px;
    height: 700px;
    position: absolute;
    right: -3%;
    top: 50%;
    transform: translate(0%, -60%);
    /* transition: all 2s ease-in-out .5s; */
    opacity: 0;

}
.video_cent {
    width: 700px;
    height: 700px;
    position: absolute;
    /* position: absolute;
    width: 700px;
    height: 700px;
    right: 1%; */
    /* transition: all 2s ease-in-out .5s; */

}

.video_interact {
    position:absolute;
    bottom: 30%;
    left: 51%;
    transform: translate(-50%, 0%);
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
    opacity: 0;
}
.video_interact:hover {
   border: 1px solid #fff;
   background-color: #fff;
   color: #000;
}


.cent1_ac {
    animation: cent1_ac 1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent1_ach {
    animation: cent1_ach 1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent1_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent1_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.cent1_v_ac {
    animation: cent1_v_ac 0.3s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent1_v_ach {
    animation: cent1_v_ach 0.3s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent1_v_ac {
    0% {
        opacity: 0;
        /* transform: scale(1); */
    }

    100% {
        opacity: 1;
        /* transform: scale(1.1); */
    }
}

@keyframes cent1_v_ach {
    0% {
        opacity: 1;
        /* transform: scale(1.1); */
    }

    100% {
        opacity: 0;
        /* transform: scale(1); */
        
    }
}

.title1_tit_ac {
    animation: title1_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title1_tit_ach {
    animation: title1_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title1_tit_ac {
    0% {
        opacity: 0;
        top: 120px;
    }

    100% {
        opacity: 1;
        top: 70px;
    }
}

@keyframes title1_tit_ach {
    0% {
        opacity: 1;
        top: 70px;
    }

    100% {
        opacity: 0;
        top: 120px;
    }
}
.title1_in_ac {
    animation: title1_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title1_in_ach {
    animation: title1_in_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title1_in {
    0% {
        opacity: 0;
        top: 320px;
    }

    100% {
        opacity: 1;
        top: 180px;
    }
}

@keyframes title1_in_ach {
    0% {
        display: block;
        opacity: 1;
        top: 180px;
    }

    100% {
        display: none;
        opacity: 0;
        top: 320px;
    }
}
 /* page-2-end */




 /* page-3 */
 .li_bac {
	display: block;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 0;
}

 .back1{
    padding-left: 8%;
    padding-right: 8%;
	position: absolute;
	top:-4%;
	left: 0;
	position: relative;
	/* height: 100%; */
	z-index: 9;
}

.cent_box2 {
    transition: all 2 ease-in-out 0.3s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-direction: row;
    padding-left: 5%;
    height: 240px;
   
}
.cent_2{
    z-index: 999;
    background: url(../images/card_bc.png);
    background-repeat: no-repeat;
    background-size: contain;
    opacity: 0;
    transition: all 3 ease-in-out 0.3s;
    position: absolute;
}



.cent_2_v_box{
    position:absolute;
    top: 3%;
    left: 50%;
    transform: translate(-50%, 0%);
}

.cent_2_video{
    opacity: 0;

}

.video_interact_2{
    position:absolute;
    bottom: 30%;
    left: 51%;
    transform: translate(-50%, 0%);
    color: #fff;
    font-size: 16px;
    z-index: 999999999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    opacity: 0;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
}
.video_interact_2:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }

.cent_2_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 27px;
    text-align: center;
    /* width: 478px; */
    line-height: 30px;
    transition: all 3 ease-in-out 0.3s;
    padding: 60px 22px 20px 12px;  
    margin: 0px;
   
}
.cent_2_p{
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 21px;
    padding: 0px 22px 0 32px;  
    /* width: 480px; */
    margin-top: 0px;
    line-height: 25px;
}



 


.cent_2_ac {
    animation: cent_2_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_2_ach {
    animation: cent_2_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_2_ac {
    0% {
        opacity: 0;
        top: 40%;
    }

    100% {
        opacity: 1;
        top: 26%;
    }
}

@keyframes cent_2_ach {
    0% {
        opacity: 1;
        top: 26%;
    }

    100% {
        opacity: 0;
        top: 40%;
    }
}
.video_interact_ac {
    animation: video_interact_ac 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.video_interact_ach {
    animation: video_interact_ach 0.4s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes video_interact_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes video_interact_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}
.cent_2_v_ac {
    animation: cent_2_v_ac 1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_2_v_ach {
    animation: cent_2_v_ach 1s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_2_v_ac {
    0% {
        opacity: 0.5;
        transform: scale(1);
        /* top: 220px; */
    }

    100% {
        opacity: 1;
        transform: scale(1.4);
        /* top: 120px; */
    }
}

@keyframes cent_2_v_ach {
    0% {
        opacity:1;
        transform: scale(1.4);
        /* top: 120px; */
    }

    100% {
        opacity: 0.5;
        transform: scale(1);
        /* top: 220px; */
    }
}


 /* page-3-end */

 /* page-4 */


 .back2 {
    padding-left: 8%;
    padding-right: 8%;
    position: absolute;
    top:0;
    left: 0;
    position: relative;
    height: 100%;
    
}

.li_bac2 {
	display: block;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 0;
}


.video_cen3{
    position: absolute;
    left: 2%;
    top: -4%;
    transform: translate(0%, -12%);
    opacity: 0;
}

#video_cent_3{
    width: 700px;
    height: 700px;
    margin-top: -117px;
}


.video_cen3_ac {
    animation: video_cen3_ac 0.5s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.video_cen3_ach {
    animation: video_cen3_ach 0.5s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes video_cen3_ac {
    0% {
        opacity: 0;
        /* transform: scale(1); */
        /* top: 220px; */
    }

    100% {
        opacity: 1;
        /* transform: scale(1.1); */
        /* top: 120px; */
    }
}

@keyframes video_cen3_ach {
    0% {
        opacity:1;
        /* transform: scale(1.1); */
        /* top: 120px; */
    }

    100% {
        opacity: 0;
        /* transform: scale(1); */
        /* top: 220px; */
    }
}


.title3 {
    position: absolute; 
   top: 21%;
   right: 6%;
    color: #fff;
    z-index: 99;
    width: 440px;
    height: 500px;
}


.video_interact_3{
    position:absolute;
    bottom: 27%;
    left: 51%;
    transform: translate(-50%, 0%);
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
    opacity: 0;
}
.video_interact_3:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }
 

.title3_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    max-width: 80%;
    line-height: 34px;
    transition: all 3 ease-in-out 0.3s;
    /* margin-top: 40px; */
    position: absolute;
    opacity: 0;
    top: 180px;
}


.title3_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 20px;
    /* line-height: 30px; */
    max-width: 90%;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 420px;
    margin: 0px;

}


.title3_tit_2{
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 36px;
    max-width: 90%;
    line-height: 34px;
    transition: all 3 ease-in-out 0.3s;
    opacity: 0;
    margin-top: 40px;
    position: absolute;
    top: 350px;
    margin: 0;
}

.title3_in_2{
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 20px;
    /* line-height: 30px; */
    max-width: 90%;
    transition: all 2 ease-in-out 0.3s;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 550px;
    margin: 0px;
}







.cent_3_ac {
    animation: cent_3_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_3_ach {
    animation: cent_3_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_3_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent_3_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.title3_tit_ac {
    animation: title3_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_tit_ach {
    animation: title3_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_tit_ac {
    0% {
        opacity: 0;
        top: 180px;
    }

    100% {
        opacity: 1;
        top: 0px;
    }
}

@keyframes title3_tit_ach {
    0% {
        opacity: 1;
        top: 0px;
    }

    100% {
        opacity: 0;
        top: 180px;
    }
}
.title3_in_ac {
    animation: title3_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_in_ach {
    animation: title3_in_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_in {
    0% {
        opacity: 0;
        top: 120px;
    }

    100% {
        opacity: 1;
        top: 60px;
    }
}

@keyframes title3_in_ach {
    0% {
        opacity: 1;
        top: 60px;
    }

    100% {
        opacity: 0;
        top: 120px;
    }
}


.title3_tit_2_ac {
    animation: title3_tit_2_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_tit_2_ach {
    animation: title3_tit_2_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_tit_2_ac {
    0% {
        opacity: 0;
        top: 300px;
    }

    100% {
        opacity: 1;
        top: 200px;
    }
}

@keyframes title3_tit_2_ach {
    0% {
        opacity: 1;
        top: 200px;
    }

    100% {
        opacity: 0;
        top: 300px;
    }
}
.title3_in_2_ac {
    animation: title3_in_2 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title3_in_2_ach {
    animation: title3_in_2h 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title3_in_2 {
    0% {
        opacity: 0;
        top: 320px;
    }

    100% {
        opacity: 1;
        top: 260px;
    }
}

@keyframes title3_in_2h {
    0% {
        opacity: 1;
        top: 260px;
    }

    100% {
        opacity: 0;
        top: 320px;
    }
}


 /* page-4-end */


 /* page-5 */
 
.back3 {
   
    padding-left: 8%;
    padding-right: 8%;
    position: absolute;
    top:0;
    left: 0;
    position: relative;
    height: 100%;
}

.title4 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position:absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -60%);
    width: 100%;
    height: 400px;
}

 
.title4_tit{
    color: #ffffff;
    font-family: DINFont_BO;
    font-weight: bold;
    font-size: 38px;
    line-height: 36px;
    letter-spacing: 0px;
    text-align: center;
    position: absolute;
    opacity: 0;
    top: 220px;
    width: 100%;
}

.title4_in {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: center;
    opacity: 0;
    /* margin-top: 40px; */
    position: absolute;
    top: 300px;
    width: 90%;
}
.text_4_but {
    color: #ffffff;
    font-family: DINFont;
    font-weight: normal;
    font-size: 24px;
    line-height: 30px;
    letter-spacing: 0px;
    text-align: left;
    max-width: 95%;
    border: 1px solid #fff;
    border-radius: 12px;
    padding: 10px 16px;
    cursor: pointer;
    position: absolute;
    top: 420px;
    opacity: 0;
    z-index: 1000000;
}

.text_4_but:hover{
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
}

.cent_4 {
    position: relative;
    position: absolute;
    left: 20px;
    top: -120px;
    width: 50%;
    padding-bottom: 40px;
}


.video_interact_4{
    position:absolute;
    bottom: 30%;
    left: 51%;
    transform: translate(-50%, 0%);
    
    color: #fff;
    font-size: 16px;
    z-index: 99999;
    font-weight: 100;
    cursor: pointer;
    padding: 10px 18px;
    border: 1px solid #fff;
    
    transition: all 0.3s ease-in-out 0s;
    border-radius: 14px;
}

.video_interact_4:hover {
    border: 1px solid #fff;
    background-color: #fff;
    color: #000;
 }


.cent_4_ac {
    animation: cent_4_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.cent_4_ach {
    animation: cent_4_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes cent_4_ac {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes cent_4_ach {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

.title4_tit_ac {
    animation: title4_tit_ac 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

.title4_tit_ach {
    animation: title4_tit_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title4_tit_ac {
    0% {
        opacity: 0;
        top: 100px;
    }

    100% {
        opacity: 1;
        top: 10px;
    }
}

@keyframes title4_tit_ach {
    0% {
        opacity: 1;
        top: 10px;
    }

    100% {
        opacity: 0;
        top: 100px;
    }
}
.title4_in_ac {
    animation: title4_in 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 0.5s forwards;;
}

.title4_inh {
    animation: title4_inh 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes title4_in {
    0% {
        opacity: 0;
        top: 300px;
    }

    100% {
        opacity: 1;
        top:120px;
    }
}

@keyframes title4_inh {
    0% {
        opacity: 1;
        top:120px;
    }

    100% {
        opacity: 0;
        top: 300px;
    }
}
.text_4_but_ac {
    animation: text_4_but 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1s forwards;;
}

.text_4_but_ach {
    animation: text_4_but_ach 0.6s cubic-bezier(0.25, 0.67, 0.63, 0.68) 1 forwards;;
}

@keyframes text_4_but {
    0% {
        opacity: 0;
        top: 400px;
    }

    100% {
        opacity: 1;
        top: 270px;
    }
}

@keyframes text_4_but_ach {
    0% {
        opacity: 1;
        top: 270px;
    }

    100% {
        opacity: 0;
        top: 400px;
    }
}

 
 
 /* page-5-end */


 /* 流媒体 */
 @media (min-width: 1024px) {
    .cent_2 {
        width: 460px;
        height: 235px;
    }
    .cent_2_tit {
        font-size: 27px;
        line-height: 30px;
        padding: 39px 36px 10px 0px;
    }
    .cent_2_p {
        font-size: 16px;
        padding: 0px 60px 0 32px;
        line-height: 23px;
    }
    .title3_in,.title3_in_2{
        min-width: 90%;
    }
    .video_cen3 {
        top: -10%;
        left: -2%;
    }

    .title3 {
        top: 20%;

    }
}

@media (min-width: 1100px) {
    .cent_2 {
        width: 460px;
        height: 235px;
    }
    .cent_2_tit {
        font-size: 27px;
        line-height: 30px;
        padding: 39px 36px 10px 0px;
    }
    .cent_2_p {
        font-size: 16px;
        padding: 0px 60px 0 32px;
        line-height: 23px;
    }
    .title3_in,.title3_in_2{
        min-width: 92%;
    }
    .title3 {
        top: 21%;

    }

    .video_cen3 {
        top: -2%;
        left: -2%;
    }
}

@media (min-width: 1280px) {
    .cent_2 {
        width: 530px;
        height: 295px;
    }
    .cent_2_tit{
        font-size: 27px;
        line-height: 30px;
        padding: 60px 22px 20px 12px;  
    }
    .cent_2_p{
        font-size: 21px;
        padding: 0px 22px 0 32px;  
        line-height: 25px;
    }
    .title3_in,.title3_in_2{
        min-width: 97%;
    }
    .video_cen3{
        top:1%;
        left:4%
    }
    .cent1{
        right: 0%;
        top: 50%;
        transform: translate(0%, -60%);
    }
    .title3 {
        top: 21%;

    }
    
}

@media (min-width: 1366px) {

    .cent_2 {
        width: 530px;
        height: 295px;
    }
    .cent_2_tit{
        font-size: 27px;
        line-height: 30px;
        padding: 60px 22px 20px 12px;  
    }
    .cent_2_p{
        font-size: 21px;
        padding: 0px 22px 0 32px;  
        line-height: 25px;
    }
    .title3_in,.title3_in_2{
        min-width: 100%;
    }
    .video_cen3{
        top:0%;
        left:8%
    }
    .cent1{
        right: 0%;
        top: 50%;
        transform: translate(0%, -60%);
    }
    .title1 {
        width: 600px;
    }

    .title3 {
        top: 21%;

    }
    
}

@media (min-width: 1440px) {
    .cent_2 {
        width: 530px;
        height: 295px;
    }
    .cent_2_tit{
        font-size: 27px;
        line-height: 30px;
        padding: 60px 22px 20px 12px;  
    }
    .cent_2_p{
        font-size: 21px;
        padding: 0px 22px 0 32px;  
        line-height: 25px;
    }
    .title3{
        right: 20%;
    }
    .title3_in,.title3_in_2{
        min-width: 150%;
    }

    .cent1{
        right: 4%;
        top: 48%;
        transform: translate(0%, -60%);

    }
    .title1{
        width: 680px;
        top: 46%;
    }
    .video_cen3 {
        top: 4%;
        left: 8%
    }

    .title3 {
        top: 22%;

    }

   
}

@media (min-width: 1680px){
    .title1{
        width: 680px;
        top: 46%;
    }
    .cent1{
        right: 4%;
        top: 49%;
        transform: translate(0%, -60%);
    }
    .video_cen3 {
        top: 10%;
        left: 8%
    }

    .title3 {
        top: 23%;

    }
}
 
 